by Dick
(Suwannee River)
Not firing on all 4 cyl under power. Idles fine, and sounds normal when rev'd out of gear.
Just finished rebuilding carbs. Replaced all fuel circuit components from pickup tube in tank to fuel lines on carbs. Vacuum synced carbs. Replaced spark plugs and coils. Fresh, non-ethanol boat gas.
Pulled plugs, # 1 was a little dirty looking on half the tip. All 3 other plugs looked clean and grey/white. Replaced # 1 plug, no change.
S/N 0T228858
Thanks for any thoughts.
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